Over 500 million tweets are sent per day.  Bob receives on average 7 tweets during his lunch hour.  What is the probability that Bob receives at leas

Q: The World Economic Forum found that 12% of the U.S. population earns more than $2M per year. Amazon…

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Q: A website knows that currently 21% of site visitors make a purchase. After a redesign of the web…

A: The conditions for the normal approximation to the binomial distribution are given below:From the…

Q: Define binomial distribution with an example.

A: Binomial distribution is one of the important study in probability distributions. In binomial…

Q: In a recent year, an author wrote 184 checks. Use the Poisson distribution to find the probability…

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Q: Earthquakes in California occur according to a Poisson process with rate 1 per week. Find the…

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Q: Assume that when adults with smartphones are randomly selected? 53% use them in meetings or classes.…

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Q: Births in a hospital occur randomly at an average rate of 1.8 births per hour. What is the…

A: Let X: number of births in a hospitalX~poission(λ)where λ=1.8 births per hourprobability mass…

Q: iv Find the probability that in the next 4 weeks the estate agent at least 2 houses. State three…

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Q: A pitcher pitches a strike ( a good pitch) an average of 75% of the time. What is the probability…

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Q: 39.6% of consumers believe that cash will be obsolete in the next 20 years. Assume that 6 consumers…

A: Let  be the number of consumers believe that cash will be obsolete in the next  years.The number of…

Q: Statistics show that 40% of men renew their car licenses after the deadline date. Assume that this…

A: Givenp=0.40sample size(n)=7Let "x"be the no.of men renew their car licenses after the deadline…

Q: Aircraft arrive at an airport according to a poisson process at a rate of 12 per hour. All aircrafts…

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Q: Use the Poisson distribution tables, not the mathematical formula.  It is estimated that 2% of the…

A: Given : 2% of the people in an auditorium of 100 unmarried/not related adults own a second home i.e…

Q: Accidents occur at an intersection at a Poisson rate of 2 per day. What is the probability that…

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Q: On the average, Jayson commits 4 personal fouls in a basketball game. What is the probabili…

A: We have given that  On the average, Jason commits 4 personal fouls in a basketball game.

Q: In a recent​ year, an author wrote178checks. Use the Poisson distribution to find the probability​…

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Q: A washing machine in a laundromat breaks down an average of three times per month. Using the Poisson…

A: λ =3 per monthx = no. of breakdowns per monthP(x≤1) = ?

Q: A statistics professor finds that when he schedules an office hour at the​ 10:30 a.m. time​ slot, an…

A: Givenan average of three students arriveλ=3x~poisson(λ=3)P(X=x)=e-λ×λxx!  ; x≥0

Q: In a recent year, an author wrote 156 checks. Use the Poisson distribution to find the probability…

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Q: In a recent​ year, a hospital had 4472 births. Find the mean number of births per​ day, then use…

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Q: A manufacturer of clothing knows that the probability of a snap flaw is 0.002 An inspector examines…

A: The objective of this question is to find the probability that an inspector finds no snap flaws in…

Q: In a recent​ year, a hospital had 4395 births. Find the mean number of births per​ day, then use…

A: Given,no.of births per year =4395no.of days per year =365

Q: In a recent​ year, a hospital had 4350 births. Find the mean number of births per​ day, then use…

A: Given that, a hospital had 4350 births in a recent year Here, consider the year has non-leap year…

Q: In a recent year, Professor Felker wrote 192 checks. Find the probability that on a randomly…

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Q: On average, 8 persons visit the doctor in a given hour. Assuming a Poisson probability distribution,…

A: Given that 8 persons visit the doctor in an hour And follow Poisson distribution

Q: 39.9​% of consumers believe that cash will be obsolete in the next 20 years. Assume that 7…

A: According to the given information,Probability of success in a trial, p = 39.9% = 0.399Total number…

Q: The Poisson distribution is an example of a continuous probability distribution. Select one: O True…

A: A discrete probability distribution is one in which the data can only take on certain values, for…

Q: In a recent​ year, an author wrote 191checks. Use the Poisson distribution to find the probability​…

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Q: Assume that when adults with smartphones are randomly​ selected,53​% use them in meetings or…

A:

Q: The maintenance department of a university receives requests for replacement light bulbs at a rate…

A: Let X be the number of requests for light bulbs follows Poisson distribution with rate of 2.4 per…

Q: An insurance company has a toll-free phone number available from 10 a.m. to 6 p.m. every day, for…

A: Given information The average calls received per minute = 0.2. Let X be the random variable denoting…

Q: Jack wakes up late on average 3 days in every 5. If Jack wakes up late, the probability he’s late…

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Q: A vending machine in a supermarket breaks down an average of four times per month. Using the Poisson…

A: Given,The average breaks down per month(λ)=4A random variable X~Poisson(λ=4)P(X=x)=e-44xx!  ;  x≥0

Q: 39.6​% of consumers believe that cash will be obsolete in the next 20 years. Assume that 7 consumers…

A: given data   p( cash obsolete) = p = 0.396 select n = 7 consumers. x = No. of cash obsolete p(x=X) =…

Q: Suppose a professional basketball player attempts 5 free throws. The player is known to successfully…

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Q: In a recent​ year, a hospital had 4392 births. Find the mean number of births per​ day, then use…

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Q: A car sells half of its inventory of a certain foreign car equipped with airbags. Using the…

A: Given information: It is given that the car sells half of its inventory of a certain foreign car…

Q: Jaylen, a basketball player, is known to make 41% of his shots. What is the probability distribution…

A: Given that  Success of probability p =41%=0.41 Number of trials n=7 X~binomial (n,p)

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.